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Improvements of ModalMax High-Fidelity Piezoelectric Audio DeviceModalMax audio speakers have been enhanced by innovative means of tailoring the vibration response of thin piezoelectric plates to produce a high-fidelity audio response. The ModalMax audio speakers are 1 mm in thickness. The device completely supplants the need to have a separate driver and speaker cone. ModalMax speakers can perform the same applications of cone speakers, but unlike cone speakers, ModalMax speakers can function in harsh environments such as high humidity or extreme wetness. New design features allow the speakers to be completely submersed in salt water, making them well suited for maritime applications. The sound produced from the ModalMax audio speakers has sound spatial resolution that is readily discernable for headset users.
Document ID
20110014885
Acquisition Source
Langley Research Center
Document Type
Other - NASA Tech Brief
Authors
Woodard, Stanley E.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 25, 2013
Publication Date
May 1, 2005
Publication Information
Publication: NASA Tech Briefs, May 2005
Subject Category
Man/System Technology And Life Support
Report/Patent Number
LAR-16321-1
Distribution Limits
Public
Copyright
Public Use Permitted.
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